Vertically-sliding door for elevator-shafts.



y B. wExLER. VEBTCALLY SLIDING DOOR FOR ELEVATOR SHAFTS.

APPLICATION FILED DEC. 9, |915.

Patented Apr. 8,1919.l

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B JIVIIN WEXLER, 0F IBRQKLYN, NEW YORK, ASSIGNOR TO THE PEELLE COMPANY,F BROOKLYN, NEW YQRK, A CORPORATION 0F NEW YORK.

VERTICALLY-SLDXNG DOR FOR ELEVATOR-SHFTS.

Specification of Letters Patent.

Patented Apr. 8, i919.

Application ined necesitar e. i915. seriai no. sence.

.To azl whom, t may concern Be it known that l, BENJAMIN Wurm-nn,

a citizen of the United States, and a restl dent of New York city,borough of Brooklyn, in the county of Kings and State of New York, haveinvented certain new and. useful improvements in Vertically-Slidmg Doorsfor Elevator-Shafts, of which the following is a speciiication.

rlhis invention relates to improvements in vertically sliding doors forelevator shafts.

'The object of my invention is to provide new and improved sliding doorsof this type which are made in sections mounted to slide vertically inparallel planes and which are so arranged as to prevent the passage oftire and smoke at the ends and meetinged es of the doors, by means ofsimple, dura le and ellicient devices.

ln the accompanying drawings .in which like letters or referencevindicate like parts in all the iigures;

Figure 1 is a vertical transverse sectional view of my improved doorsshowing my improvement, the doors being closed.

Figa is an enlarged horizontal sectional view on the line aff-m oflifig. 1.

Fig. 3 is an enlarged vertical transverse sectional view of the lowerpart oi the upper door and the lower door, parts being broken out.

Fig. 4 is a horizontal sectional view through the upper door.

Fig. 5 lis a plan view of the top of the lower door, parts being brokenout.

Fig. 6 is a similar view showing a plate riveted `to the upper edge ofthe lower door.

Fig. 7 is a. sectional view on the line g/-y oi Fig. 6 showing how thesuspension chain is connected with the door.

The upper and lower door sections land 2 respectively are mounted tomove vertically in parallely vertical pla-nes. The door sections 1 and 2are suspended from sprocket chains 3 and 4 respectively, which pass oversprocket wheels 5 and 6 respectively, the sprocket wheel 5 being abouthall? the diameter of the sprocket wheel 6, and the sprocket wheelsbeing lirmly connected to each other. The sprocket wheels are mounted ina suitable housing and the sprocket chain 4 is connected with a suitablecounter-balance weight, and the sprocket chain Spasses over the sprocketwheel 5 without. a counterweight, as fully set forth in my applicationSerial No. 48,593, so that the door sections when the door is opened orclosed, have simultaneous vertical movement in the same direction butupon parallelv planes, the lower door sections moving approximatelytwice as fast as the upper door sections.

The door opening 7 is usually provided with a lining formed of a channelbar 8, but it may also be formed of masonry. To the ilange 9 ot' thechannel bar 8, at the shaft side of the door opening, or to the wall 10at the shaft side, an angle bar 11 is bolted or riveted by means of oneHarige, the other ilange or this angle bar projecting into the shaft andbeing the main guide on which the doors slide. To the inwardlyprojecting `flange of the angle guide bar 11, an an le bar 12 isriveted, the free ange 17 of which is embraced by the U-shaped guideclips 13 which are bolted to a vertical angle bar 14 on the Tbar 15forming the vertical end pieces of the lower door 2. rlhe Hangs 16 ofthe angle bar 14 laps over the guide clips and thus also laps over theange 17 of the angle bar 12 and serves to guide the door as it moves upand down.

ln order to prevent lame from passing from the building to the elevatorshaft or vice versa, at the side edges of the lower door, when the sameis closed, l provide an angle bar 18 which is bolted to that flange 19of the angle bar l1`v which is attached to the wall 10., or to the inneriiange 9 of the channel bar 8, and the flange 20 of this angle barprojects toward the door and is adjacent to the inner side of a verticalflange 21 of the nlbar 15 forming the side of the frame of the lowerdoor, so that the llange 2O of the angle har 18 overlaps the flange 2lof the T-bar formingthe side ci the door frame,y and this channel 18extends from the door up to the bottom edge of the upper door, when thesaine is in its lowest position, so that the bottom Llloar 22 of theupper door can rest on the upper edge of the flange 2O of the angle bari8, when the upper door is in its lowest position. The free edge of the`flange of the angle har 18 extends to the web of the il-bar 15 formingthe vertical end member of the lower door, as shown in Fig. 2.

in order to permit the lower door to rise, the flange 23 of the bottomlbar 24 ci the lower door, must be notched as shown at 25 ,and thisnotch must be greater than the Width of the flange 20, so as to allowfor expansion in case of fire.

As the doors lap when closed and the upper edge of the lower doorextends' up that is to say, part of it must extend up-` ward beyond thelower edge vof the upper door, so as to form a wing' 26, which extendsto the underside of the top T-bar 27 of the lower door. The topT-bar 27of the lower door 2 is provided with a notch 28 at each end of the door,into which a link of the suspending chain 4 for the lower door, isinserted, in the conventional manner and to confine said link in saidnotch the outer edge of the notch must be closed. llfhis is accomplishedby bolting a plate 29 to the top of this T-bar 27 in such a manner thatit laps over the edge of the T-bar 27 and extends toward the surface ofthe upper door l. This -plate or bar 29 has the inner corners cut out,as shown at 30, so -as to form a lug or wing 31 which extends across thenotch 28 and confines the chain within said notch and preventswithdrawing it.

In the overlapping part of the plate 29,1 pro-vide a series of slots 82which extend longitudinally of the plate. To the underside of the bottomT-bar 22 of the upper door, an angle iron 34 is riveted in such mannerthat its flange 35 extends upward between the doors l and 2. To the saidupwardly extending flange, plates 3G are riveted, which terminate attheir upper ends in upwardly projecting pins 38. When the doors areclosed and both are in their lowermost positions, the pins 38 passthrough the slots 32 in the plate 29 and thus lock the doors together attheir meeting edges and prevent their being separated laterally.Furthermore the plate 29 acts as a bae plate and prevents flame andsmoke from the loft from passing up between the doors into the shaft.

When the doors rise, the lower door moves about twice as fast as theupper door, and when the doors are opened, the plate 29 moves upwardfaster than the angle iron 34: and thus the pins 88 are disengaged fromthe slots 32.

As the lower door is moved up and downward, it slides parallel with theflange 20 of the angle iron 18, which is close to the flange 21 of thevertical T-bar 15 of the door frame and overlaps the same and the freeedge of the liange 2O of the angle bar 18 is close to the web of theT-bar 15, thus precluding the passage of flame through the door opening,into the elevator shaft as the flange 20 of the angle bar 18 acts as abaille for llame and smoke.

Having described my invention what l ineaeee claim as new and desire tosecure by Letters Patent is:

1. rll-he combination with a door comprising an upper and a lowersection, both movable vertically'in the same direction but in parallelplanes at a door opening', of vertical guides at opposite sides of thedoor opening, guide members carried by said door sections respectivelycoperating with said guides, and plates projecting from the walladjacent each side of said opening, into close proximity to the sideframes of said lower section, said plate being o f a height to beengaged by the upper section when the door is closed, whereby when thedoor is closed, the gaps between the lower section and below the uppersection, andthe wall adjacentythe door opening will be substantiallyclosed.

l2. The combination with a door comprising an upper and a lower section,both movable simultaneously inthe same direction but in parallelvertical planes at a door opening, said lower section having an angular,overhanging frame, ofvertical guides at opposite sides of the dooropening, guide members carried by said door sections respectivelycoperating with said guides, andl plates projecting from the walladjacent each side of said opening within the overhanging frame of thelower door section, said plates being of a height to be engaged by theupper section when thedooi` is closed, said frame being slotted ornotched to span the edge of said plate, whereby when the door is closed,the gaps between vthe lower section and below the' upper section, andthe wall adjacent the door opening will be substantially closed.

3. The combination with a door comprising an upper and a lower section,both movable vertically in the same direction but in parallel planes ata door opening, of vertical guides at opposite sides of the dooropening, guide members carried by said door vsec- 110 tions respectivelycoperating with said guides, and plates projecting from the walladjacent each side of said opening, each of said plates being notched`in its upper end to form a .recess adapted to receive the lower 115edge of the upper door section when the door is closed whereby saiddoors overlap and the gaps between the lower section and below the uppersection, and the wall adjacent the door opening will be substantially120 closed.

4. The combination with a door comprising an upper and a lower sectionmovable vertically in the same direction but in parallel planes at adoor opening, of plates pro- 125 jecting from the wall adjacent eachside of said opening within the frame ofthe lower door section and intoclose proximity to the surface ofthe said section, said frame .beingslotted, or notched'to span said plate 130 and being of a height to beengaged by the upper section when the door is closed and a plateprojecting from the top frame of the lower section within the frame ofthe upper section and in close proximity to the surface of said uppersection whereby when the door is closed all gaps between the lowersection, and the wall adjacent said opening and between the doorsections, will be substantially closed.

. 5. The combination with a door compris.` ing an upper and a lowersection movable verticallyin the same direction but in parallel planesat a door opening, of plates projecting from thewall adjacent each sideof said opening within the frame of the lower door section and intoclose proximity to the surface of said section, said frame being slottedor notched to span said plate and being of a height to be engaged by theupper section when the door is closed, a plate projecting Ifrom the topframe vof the lower section within the frame of the upper section and inclose proximity to the surface of said upper section whereby when thedoor is closed all gaps between the lower section, and the wall adjacentsaid opening and between the door sections, will be substantiallyclosed, and means forming an interlock between the door sections whenthey are closed whereby the formation of a gap between said platecarried by said lower section and the surface of the upper section bystrees on either of said sections, is prevented.

6. The combination with a door comprising an upper and a lower sectionmovable vertically in the same direction but in parallel planes at adoor opening, of vertical guides at opposite sides of the door opening,guide members carried by said door sections respectively coperating withsaid uides, a guide member carried by each of said sections and a flangemember carried by said door sections respectivelyl adjacent said guidemembers, the Hange of said member occupying a plane parallel with saidguides respectively, the edges of said flange and said guidesoverlapping each other.

Signed at New York city, borough of Manhattan, in the county of New Yorkand State of New York, this 8th day of December, A. D. 1915,

` BENJAMIN WEXLER. Witnesses:

M. SHAW, E. F. MITCHELL.

